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Mathematics, 03.02.2022 17:50 MeHelp101

Given that sinA= 3/7, cosB= -2/5, and that both A and B are in quadrant II, find cos(A-B). Simplify it to a single value, leaving it in the form of a rational number. I attached an image. It’s easier to see.


Given that sinA= 3/7, cosB= -2/5, and that both A and B are in quadrant II, find cos(A-B). Simplify

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Given that sinA= 3/7, cosB= -2/5, and that both A and B are in quadrant II, find cos(A-B). Simplify...
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